Light Meter Circuit
Posted on Jul 26, 2012
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This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of.... -
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is.... -
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to.... -
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This.... -
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the.... -
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,.... -
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the.... -
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power.... -
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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So I wasn`t really in the mood of making and coding the timing controller for the PCB laser...
Here the simple traffic light controller which is could be used to educate kids rudiments of...
Circuit power amplifier circuit in the figure below is a schematic circuit power amplifier with...
This Line Following Robot sensor or surface scanner for robots is a very simple, stamp-sized,...
The LM2889 is designed to Interface Audio and Video sig- nals to the Antenna terminals of a TV...
This is a compact three transistor, regenerative receiver with fixed feedback. It is similar in...
Most dimmers use pulse width modulation (PWM) to control the amount of power that is delivered to...
At some point every ham working with FM radios has need to do some tuning of the transmitter and...
Until quite recently spread spectrum techniques were almost exclusively in the military domain....
Circuit as shown, mainly by the integrated voice chip ISD2560 composition. Winbond ISD2560 is...
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